Rex Features
Moore released My Word Is My Bond last month and two US studios are reportedly in the frame to pick up the rights to the story.
"The two production companies' interest in Roger was heightened after they read the tales of his Hollywood exploits," a source told WENN.
"They are keen to centre on that era ahead of his 007 days. They believe film-goers will lap this one up and it could be a huge hit."
According to the mole, Moore already has an idea as to who he would like to play him in the movie. "The whole project is shrouded in secrecy but Roger has been telling friends, with a knowingly raised eyebrow, that he's a great admirer of Johnny Depp."
My Word Is My Bond details Roger Moore's 1950s and '60s exploits alongside fellow actors Elizabeth Taylor, David Niven and Lana Turner.
